Abstract
Meta-analyses provide support for the improved persuasiveness of a message including: (a) evidence source qualification, (b) assertive evidence, and (c) statistical over narrative evidence. The current empirical examination seeks to determine whether the persuasiveness of a message represents the additive effect of the individual message elements. The data in this investigation support this view of message persuasiveness.
Notes
1 This effectiveness, however, is qualified by subsequent research which demonstrates that using both forms of evidence (statistical and narrative) is an even more effective strategy then using one form of evidence alone (Allen et al., Citation2000).